Im thinking I have a front end bearing going out somewhere? The viberation isn't rpm or gear sentive. And sometimes in pulses in and out. Anyone have any ideas? The car has 70,000 miles and its driving me nuts

 

Sorry to hear about the vibration concern you're experiencing with your Cobalt. What is your plan of action in getting this taken care of? If I can be of any assistance, please let me know.

Best,
Sarah
GM Customer Service

 

Wheel balance issue most likely, how are your tires?

 

I had my rims powder coated in november and they were balanced then, and the tires are about bald

 

rotate your tires see if it changes.

 

Probably your worn out tires then, I'd say get a nice set of tires and have them balanced well, should solve your problem.

Quick way to check your hubs:

With the car off the ground, put your hand around the back of the wheel on the knuckle/hub, and spin the wheel by hand. If the bearings are getting bad, you will feel it vibrating, get a rough feeling almost. A good bearing that is smooth you won't feel anything. If you aren't sure if you feel something, then it isn't bad

If you have bad tires/alignment/wheel balance issues, you need to fix that before it does mess up something else.

Also check your control arm bushings while you have the front end up (pry against the rear of the LCA and see if it deflects easily), it should move but not be sloppy.

 

Get tires and check front end for play

 

Thanks man, I'll try those things.

 

It's spelled vibration. Try pronouncing viberation by each syllable and tell me if that sounds right.

When I had a vibration on my old car, it was just the tires were really bald. When I got new tires, the vibration went away.